JP5370911B2 - LED lighting device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an LED lighting device with a large heat dissipation effect even if it is of a special form, and capable of controlling a rise of its temperature even in the case that the device is miniaturized. <P>SOLUTION: The LED lighting device is composed of a square shaped cylindrical chassis 1 of a thermal conductive material with a translucent part on a part of the same, and forming a pair of rail-shaped holding portion with recesses located therein and facing opposite sides, respectively, which supports an electrical component support body with a variety of electrical components at one side and LED support bodies formed of thermal conductive materials and supporting LED mounting substrates at the other side. Furthermore, at least one junction surface out of the junction surface between the holding portion and the electric component support body, the junction surface between the electrical component support body and the LED support bodies, and the junction surface between the LED support bodies and the LED mounting substrates is adhered with a thermally conductive agent. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

The present invention relates to an improvement of an outdoor LED lighting device.

In recent years, LED lighting devices tend to be frequently used in various lighting fields. For example, LED lighting devices used as crime prevention lights, garden lights, street lights, and the like use LED light sources with high power consumption.
If an LED light source with high power consumption is used, the heat generation amount increases, so a heat dissipation structure is required.
Therefore, a technique for applying heat conduction oil to effectively dissipate heat has been filed and registered (Patent Document 1).

In addition, heat radiation silicon grease, a heat radiating sheet, or the like is interposed between the light source unit and the reflector to dissipate heat from the LED light source to the reflector, thereby enhancing the heat radiation effect of the LED light source.
Utility model registration No. 3110731 JP 2008-117558 A

However, in the structures described in Patent Document 1 and Patent Document 2 described above, the technical effect can be exhibited, but the apparatus is made compact with a special shape such as a security light, a garden light, or a street light. In this case, a separately devised outdoor LED illumination device is required.

The present invention has the following configuration in order to solve the above problems. In the first aspect of the present invention, the openings on both side surfaces of the rectangular cylindrical body in which a plurality of heat radiating fins are integrally formed on the outer surface formed of a heat conductive material and having a light transmitting part in part A pair of rail-like rails having a square packing sandwiched in a screw hole at a corner of the opening from the outside of the lid and tightened with a screw, and having a recess at an opposing portion of the inner surface of the square cylindrical body of forming a fitting part, the fitting part, a support plate having various electrical components on one side is supported on one side, also constructed of a thermally conductive material for supporting the LED mounting substrate on the other surface, the mounting angle of the LED and it is supported by fitting the both sides of the electrical component support for supporting the structure to become LED support so as to select a.
Further, a heat conductive material is attached to the joint surface between the hook portion and the electrical component support, the joint surface between the electrical component support and the LED support, and the three joint surfaces of the LED support and the LED mounting substrate. It is.
According to the outdoor LED lighting device according to claim 1, the openings on both side surfaces of the rectangular cylindrical body integrally formed with a large number of radiating fins on the outer surface are arranged at the corners of the opening from the outer side of the rectangular lid. While holding a square packing in the screw hole of the part and tightening and closing with a screw,
A pair of rail-shaped hooking portions having recesses are formed on the opposing portions of the inner surface of the rectangular cylindrical main body , and a support plate having various electrical components on one side is supported on the hooking portion on one side, and the other side. It is composed of a heat conductive material that supports the LED mounting board, and is fitted to both sides of the electrical component support that supports the LED support that also serves as a heat dissipation effect, so that the mounting angle of the LED can be selected. Even if it is a special shape to be supported, the heat radiation effect is large, and there is a technical effect that can suppress the temperature rise of the lighting device even if the lighting device is made compact.

According to a second aspect of the present invention, in the outdoor LED lighting device according to the first aspect, the heat conductive material is formed using either grease or a heat dissipation sheet.
According to the outdoor LED lighting device of the second aspect, it can be easily configured by interposing a grease or a heat radiating sheet at a corresponding location.

According to the present invention described above, a specially-shaped LED lighting device can enhance the heat dissipation effect and can be configured in a small size, and an outdoor LED lighting device that is optimal as a security light, a garden light, a street light, or the like can be obtained. Can do.

The best mode of the present invention will be described below with reference to FIGS. As shown in FIG. 1 to FIG. 5, the present invention provides a rectangular lid with openings on both sides of a rectangular cylindrical body having a translucent part in part and made of a heat conductive material. A pair of rail-shaped engagements having a concave portion at the opposing part of the inner surface of the rectangular cylindrical body, and holding and closing the square packing in the screw hole at the corner of the opening from the outside of the body The electrical component support that has various electrical components on one side is supported by the hooking part, and the other surface of the electrical component support is made of a thermally conductive material, and the LED mounting angle is selected. The LED mounting substrate is supported and configured on an LED support that also serves as a heat dissipation effect .
Further, a heat conduction material is interposed between the joint surface of the hooking part and the electric component support, the joint surface of the electric component support and the LED support, and the three joint surfaces of the LED support and the LED mounting substrate. .

FIG. 1 is an external perspective view of an outdoor LED lighting device according to the present invention, FIG. 2 is an exploded perspective view of a main part in FIG. 1, and FIG. 3 is a diagram in which an electrical component support is pulled out from a rectangular cylindrical body in FIG. FIG. 4 is a perspective view of the electric component support in FIG. 2 when an LED support that supports a support plate and an LED mounting substrate is supported. FIG. 5 is a perspective view when the LED support is supported on the electrical component support in FIG.
In FIG. 1 to FIG. 3, reference numeral 1 denotes a rectangular cylindrical main body constituting an outdoor LED lighting device , which has openings 2 and 3 on both side surfaces, and is formed by extrusion molding with, for example, aluminum. Reference numerals 4 and 5 denote a pair of rail-shaped hooking portions having a recess 6 formed in an opposing portion of the inner surface of the rectangular cylindrical main body 1, and the depth of the recess 6 is configured to be 6 millimeters, for example. In addition, a large number of radiating fins 7 are integrally formed on the outer surface of the rectangular tube-shaped main body 1. 8a, 8b, and 8c are a plurality of light-transmitting portions formed on, for example, the lower surface of the rectangular cylindrical main body 1, and are formed in a number of 2 to 5 depending on the size of the outdoor LED lighting device. The light transmitting portions 8a, 8b, and 8c are formed by punching after the rectangular cylindrical main body 1 is extruded with aluminum.

In FIG. 1, reference numeral 10 denotes a support for supporting an outdoor LED lighting apparatus, and is configured in a square shape, for example. Reference numeral 11 denotes an adapter for attaching the outdoor LED lighting device to the column 10.

Reference numeral 20 denotes an electrical component support that supports a support plate having various electrical components on one side and supports an LED support that is composed of a thermally conductive material that supports the LED mounting substrate on the other side. there are, are constituted by thermal conduction resistance material, such as aluminum. The electric component support body is formed in a flat plate shape, and both sides are fitted into and supported by the engaging portions 4 and 5. Reference numeral 21 denotes a support plate for attaching the electrical component to the electrical component support 20. Examples of the electrical components supported by the support plate 21 include capacitors, diodes, resistors, and transistors.

Reference numeral 30 denotes an LED support that is supported on the side of the electrical component support 20 opposite to the electrical component support surface, and is made of a heat conductive material such as aluminum. The LED support 30 is substantially V-shaped. An LED mounting substrate 31 is supported by the LED support 30 and is configured to support, for example, a 5-watt LED. The LED mounting substrate 31 is made of aluminum, for example.

40 rectangular tubular a rectangular lid for closing the opening portion 2 on both sides of the main body 1, opening portions of both side surfaces of the square tubular body 1 a gasket 41 of the square is sandwiched between 2 and 3 are tightened. In order to fasten the lid 40 to the openings 2 and 3 on both side surfaces of the rectangular cylindrical main body 1, screw holes 42 are formed at the corners of the openings 2 and 3 on both side surfaces of the square cylindrical main body 1, the screw than the outer side of the cover 40 are screwed and configured to screw hole 42.

Thermal The bonding surface of the fitting part 4, 5 and the electric component supporting part 20 described above, the bonding surface of the electric component supporting member 20 and the LED substrate 30, the three positions of the joint surface of the LED substrate 30 and the LED mounting substrate 31 A conductive material is interposed. The heat conductive material is configured using either heat conductive grease or a heat conductive heat radiation sheet. For example, silicon is used as the thermally conductive grease. In order to interpose the thermally conductive grease, for example, it is applied using a spatula.
In addition, a structure having a thickness of about 0.5 mm is sandwiched in the structure including the heat conductive heat radiating sheet.

Further, the joint surfaces of the hook parts 4 and 5 and the electrical component support 20, the joint surfaces of the electrical component support 20 and the LED support 30, and the joint surfaces of the LED support 30 and the LED mounting substrate 31 are provided at three locations. heat and configuring interposed conductive material, compared to those not interposed a thermally conductive material to the bonding surface, it has been confirmed that in the LED mounting substrate can be suppressed 3 degrees temperature rise.

The external appearance perspective view of the outdoor LED illuminating device which concerns on this invention. The disassembled perspective view of the principal part in FIG. The exploded perspective view when an electric component support body is pulled out from the rectangular cylindrical main body in FIG. The perspective view when the LED support body which supports an LED attachment board | substrate is supported on the electrical component support body in FIG. FIG. 5 is a perspective view when the LED support is supported on the electrical component support in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Square-shaped cylindrical main body 2, 3 Opening part 4, 5 Engagement part 6 Recessed part 7 Radiation fin 8a, 8b, 8c Translucent part 10 Support | pillar 11 Adapter 20 Electric component support body 21 Support plate 30 LED support body 31 LED mounting board 40 Lid 41 Hollow packing 42 Screw hole

Claims (2)

The openings on both sides of the rectangular cylindrical body, which has a light-transmitting part in part and is formed of a large number of heat dissipating fins on the outer surface made of a heat conductive material, are placed outside the rectangular lid. More tightly closing the square packing in the screw hole at the corner of the opening and tightening and closing with a screw,
A pair of rail-like hooking portions having recesses are formed on the opposing portions of the inner surface of the rectangular cylindrical main body , and a support plate having various electrical components on one side is supported on the hooking portion, and the other side. It is composed of a heat conductive material that supports the LED mounting board, and is fitted to both sides of the electrical component support that supports the LED support that also serves as a heat dissipation effect, so that the mounting angle of the LED can be selected. was supported further joint surface of the engaging portion and the electric component supporting member, the electrical component bonding surface of the support and the LED support, the thermally conductive material is deposited on the LED support and 3 positions of the joint surface of the LED mounting substrate An outdoor LED illumination device characterized by comprising The outdoor LED lighting device according to claim 1, wherein the heat conductive material is configured by using either grease or a heat dissipation sheet.

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